From Wikipedia, the free encyclopedia
Punta de Choros Metamorphic Complex
Stratigraphic range: CarboniferousPermian
Type Complex
Lithology
Primary Micaschist
Other Greenschist
Location
Region Atacama Region
Country  Chile
Type section
Named for Punta de Choros

The Punta de Choros Metamorphic Complex is a large coherent group of metamorphic rocks –in other words a geologic complex– of the Chilean Coast Range in northern Chile. It consists mainly of micaschists, greenschists and other low-grade metasediment. The complex was formed by the metamorphism of sediments and associated mafic rocks at the interface between a subducting plate and the overriding plate. [1]

References

  1. ^ Creixell, C.; Oliveros, V.; Vásquez, P.; Navarro, J.; Vallejos, D.; Valin, X.; Godoy, E.; Ducea, M.N. (2016). "Geodynamics of Late Carboniferous–Early Permian forearc in north Chile (28°30′–29°30′S)". Journal of the Geological Society. 173 (5): 757–772. doi: 10.1144/jgs2016-010. S2CID  130149182.